chemistry, arynes and benzynes are a class of highly reactive chemical species derived from an aromatic ring by removal of two substituents. Arynes are examples...
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Transition metal benzyne complex (redirect from Metal-aryne complex)
Transition metal benzyne complexes are organometallic complexes that contain benzyne ligands (C6H4). Unlike benzyne itself, these complexes are less reactive...
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Bamford–Stevens reaction (section Synthesis of 3-substituted indazoles from arynes and N-tosylhydrazones)
undergo a [3+2] dipolar cycloaddition with the aryne to give the product, or a [3+2] annulation with aryne which would also give the final product. While...
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intermediates based on carbon are radicals, carbenes, carbocations, carbanions, arynes, and carbynes. Reactive intermediates have several features in common: low...
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kJ/mol) but much less than that required for a proton abstraction to an aryne (82 kcal/mol or 340 kJ/mol). In alkene radicals proton abstraction to an...
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occupied by the leaving group. For example, cine-substitution is observed in aryne chemistry. Tele-substitution occurs when the new position is more than one...
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chloride reaction proceeds through a classical aryne intermediate: The isomers 1a and 1b form the same aryne 2 which continues to react to the anilines 3a...
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label was used to determine the mechanism in the 1,2- to 1,3-didehydrobenzene conversion of the phenyl substituted aryne precursor 1 to acenaphthylene....
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synthesis, methyl anthranilate can be used as a source of the highly reactive aryne, benzyne. It is obtained by diazotization of the amine group using sodium...
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Canadian junior team in 2009. Tavares has three children with his wife Aryne. After the birth of his oldest he began writing his children's names on...
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regioselectivity. Chiral catalysts have been employed in combination with arynes to produce non-racemic atropisomeric products. Catalysts for cyclotrimerisation...
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presence of n-butyllithium or potassium amide or via an intermediate 1,4-aryne the tricyclic 1,4-adduct 1,4:5.8-diepoxy-1,4,5,8-tetrahydroanthracene is...
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transition-metal-free carbon-carbon and carbon-heteroatom bond-forming reactions using aryne chemistry and carbene-based organocatalysis. Biju has a B Sc degree in chemistry...
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bromine substituent replaced by an amine. This rules out the formation of an aryne intermediate A which would also give the 5-substituted isomer. The exclusion...
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with preference for the endo isomer: Diels-Alder reaction of furan with arynes provides corresponding derivatives of dihydronaphthalenes, which are useful...
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hydride ion and elimination-additions with formation of an intermediate aryne configuration, and usually proceed at the 2- or 4-position. Many nucleophilic...
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Li, Yang (2021-04-14). "o -Silylaryl Triflates: A Journey of Kobayashi Aryne Precursors". Chemical Reviews. 121 (7): 3892–4044. doi:10.1021/acs.chemrev...
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anthracene compound with an aryne in a Diels-Alder reaction in isoamyl nitrite. In this synthesis the precursor to the reactive aryne is 2-amino-6-methylbenzoic...
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circumvent the generation of the undesired allene, the Kobayashi method for aryne generation was adapted for the synthesis of cycloalkynes. More recently...
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temperature when molecularly encapsulated. Examples include cyclobutadiene, arynes or cycloheptatetraene. Large metalla-assemblies, known as metallaprisms...
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21203/rs.3.rs-3411973/v1 Fields, Ellis K.; Meyerson, Seymour (October 1966). "Arynes by Pyrolysis of Acid Anhydrides". J. Org. Chem. 31 (10): 3307–3309. doi:10...
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Kwok Keung Daniel (1986). "A one-pot synthesis of m-terphenyls, via a two-aryne sequence". The Journal of Organic Chemistry. 51 (16): 3162–3165. doi:10...
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Wikispecies: Arctostaphylos nevadensis Calflora: 586 CoL: GBNP EoL: 587521 EPPO: ARYNE FEIS: arcnev FNA: 250092386 GBIF: 2882552 GRIN: 3863 iNaturalist: 75527...
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Schwemlein, Heinz P. (1989). "Metal Complexes of Small Cycloalkynes and Arynes". Angew. Chem. Int. Ed. Engl. 28 (10): 1296–1320. doi:10.1002/anie.198912961...
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Kwok Keung Daniel (1986). "A one-pot synthesis of m-terphenyls, via a two-aryne sequence". The Journal of Organic Chemistry. 51 (16): 3162–3165. doi:10...
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1021/ja0602647 Reaction sequence: the key step is a [2+2] cycloaddition between an aryne formed from the iodotriflate by action of n-butyllithium and a ketene silyl...
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and Chien-Hong Cheng (2005). "Nickel-catalyzed cocyclotrimerization of arynes with diynes; a novel method for synthesis of naphthalene derivatives". Chemical...
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in the understanding and utilization of strained intermediates, such as arynes, cyclic alkynes, and cyclic allenes. His laboratory has completed the total...
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C-H activation, where a pendant alkane C-H bond traps a metal-complexed aryne intermediate. Lee and co-workers observed that transition metal catalysts...
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Buyck, Thomas; Wang, Qian; Zhu, Jieping (2018-05-14). "Heteroannulation of Arynes with α-Amino Imides: Synthesis of 2,2-Disubstituted Indolin-3-ones and Application...
17 KB (1,352 words) - 05:01, 5 August 2024